peptones


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peptones

Various protein derivatives obtained by acid or enzyme HYDROLYSIS of protein and used as nutrients or culture media.
References in periodicals archive ?
The inoculum was grown in Erlenmeyer flasks (250 mL) containing 50 mL YM broth (1 kg [m.sup.-3]): peptone, 5, yeast extract, 3, malt extract, 3, glucose, 20, distilled water qsp 1000 mL) from slant cultures of the microorganism.
Experiments were carried out using two different growth media: Medium 1, complex: modified YM broth (1 kg [m.sup.-3]): peptone, 5, yeast extract, 3, malt extract, 3, glycerol, 40, K[H.sub.2]P[O.sub.4], 0.1 and urea, 0.01; Medium 2, simple (1 kg [m.sup.-3]): glycerol, 40, K[H.sub.2]P[O.sub.4], 0.1 and urea, 0.01.
Keywords: Chinese hamster ovary cells, Peptones, Polyethylenimine, Protein production, Transient gene expression
The need to minimize animal-derived components in the production process has created an interest in using protein hydrolysates (peptones) as alternative supplements to replace serum.
The process utilises co-products of fishing and aquaculture, in this case the peptones used in the study are produced from sustainable marine aquaculture as a co-product from the Norwegian salmon processing industry.
MB established a commercial operation based on the sale of pet and livestock feed--at the lower end of value chain, but has the potential to develop a marine peptone for the fermentation market--the higher end of the value chain.
Bactosoytone, the medium that is used to cultivate bacteria in the process of making monosodium glutamate, is one of the peptones.
The first spinner was supplemented with Panexin NTS (5% v/v), yeast (1.5 g/L) and peptone (1.5 g/L) in ProCHO5 medium, the second and the third spinners contained Xtreme and power feeds (10% v/v), while the fourth spinner had ProCHO5 media as the control group.
The highest expression, 125 mg/L, was obtained from DMEM-F12 supplemented with 5% Panexin NTS, yeast extract and peptone at 1.5 g/L final concentrations of each.
(2002), peptones and yeast extract are additional components, not usually necessary for agar media.